import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pangolin_vpn/core/responsive/form_factor.dart';

Future<FormFactor> _ffAt(WidgetTester tester, Size size) async {
  late FormFactor ff;
  tester.view.physicalSize = size;
  tester.view.devicePixelRatio = 1.0;
  addTearDown(tester.view.reset);
  await tester.pumpWidget(MediaQuery(
    data: MediaQueryData.fromView(tester.view),
    child: Builder(builder: (c) { ff = c.formFactor; return const SizedBox(); }),
  ));
  return ff;
}

void main() {
  testWidgets('iPad 竖屏(768) → tablet', (t) async {
    expect(await _ffAt(t, const Size(768, 1024)), FormFactor.tablet);
  });
  testWidgets('iPad 横屏(1024) → tablet', (t) async {
    expect(await _ffAt(t, const Size(1024, 768)), FormFactor.tablet);
  });
  testWidgets('iPhone(390) → mobile', (t) async {
    expect(await _ffAt(t, const Size(390, 844)), FormFactor.mobile);
  });
}